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LC898201 fiches techniques PDF

ON Semiconductor - Iris/Zoom/Focus/Day-Night switching Drive Controller

Numéro de référence LC898201
Description Iris/Zoom/Focus/Day-Night switching Drive Controller
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LC898201 fiche technique
Ordering number : ENA2319A
LC898201
CMOS LSI
Iris/Zoom/Focus/
Day-Night switching
Drive Controller
http://onsemi.com
Overview
LC898201 is the appropriate motor control LSI for the surveillance camera
usage, and it can drive iris, focus, zoom and Day/Night switching
simultaneously.
It incorporates two feedback circuits for iris and focus control, and two
stepper motor control circuits for zoom and Day/Night switching (cf. P4
Application-1).
Moreover, the feedback control applies iris control, and stepper motor
controls apply focus, zoom and Day/Night switching at the mode selection
(cf. Application-2 to 4 of P5 to P7).
Stepper motor control circuits can drive the stepping motor efficiently(It is
called “ECO(GREEN)-driver”) (For a limited numerical usable channel,
refer to Application-1 to 4 of P4 to P7).
TQFP64 7x7
[ LC898201TA-NH ]
Features
Built-in equalizer circuit by digital operation
- Iris control equalizer circuit
- Focus control equalizer circuit (MR sensor can be connected.)
- Coefficients can be set arbitrarily through the SPI interface.
- Computed values in the equalizer can be monitored.
Built-in 3ch stepping motor control circuits
(2ch are equipped with “ECO(GREEN)-driver” circuits)
(Usable channel is shown in Application-1 to 4 of P4 to P7)
SPI bus interface
PI control circuit
- 30mA Sink output terminal
- Built-in PI detecting function (A/D method)
A/D converter
- 12bit (6ch)
: Iris, Focus, ECO, PI detection
D/A converter
- 8bit (5ch)
: Hall offset, Constant current bias, MR Sensor offset, ECO offset
Operation Amplifier
- 4ch (ECO 1, Iris control x1, Focus control 2)
FBGA64 6x6
[ LC898201RA-NH ]
To the next page.
ORDERING INFORMATION
See detailed ordering and shipping information on page 16 of this data sheet.
Semiconductor Components Industries, LLC, 2014
August, 2014
80814HK 20140707-S00002/32514HK No.A2319-1/16

PagesPages 16
Télécharger [ LC898201 ]


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